Apparatus for controlling the flow of liquids.



UNITED s'rArEs lParana? OFFICE.

.APPARATUS FOR CONTROLLING THE FLOW OF LIQUIDE.

Specification of Letters 'Pw tent.

Application tiled March 1, 1909. Serial No. l.801148.

.To all whom it may concern.'

Beit known that L'ALBiin'r Piuicsiaiizi, a subject 'of the King of England, residing,- in 'the city and county of Philadelphia. und

State of Pennsylvania, have invented au Improvement in Apparatus for Controlling the Flow of Liquids, of which' the following is a specification. In many instances it is desirable to vary the quantity ofliquid discharged propor- This is particularly -desirable in connection with sewage disposal systems in which the sewage is distributed by a sprinkler or noznecessary that it shallbe distributed evenly on the hed. This cannot be accmnplished with stationary nozzles by simply increasing and decreasing the radius of the spread without any variation in the quantity oi liqf uid discharged, since the arcas supplied will vary directly withv the squares of the radii of the spread, and if the quantity discharged is constant for all i'adii,less liquid per surface unit will he distributed over the surface olf the hed in' greater areas than will be distributed over the surface .in .less areas..l

To obtain the even' distribution of liquid it is necessary towvaiy `the quantityv of the liquid discharged proportionally with the spread o` area supplied. As the radius ot the spread-and consequently' the area supplieds-decreuses, the quantity of liquid disr charged-n1.|istdecrease,'and vice versa. This result I accomplish byy supplying the liquid "to the nozzle from-a tank or liquid container of decreasing capacity or horizontal dimension from the top to bottom. As the by 'the nozzle are proportional to thehydro- Statie head, it follows that during the fall of the head in the tank and the resulting det |-sion,' and the intake end of the Siphon g is' ,'located with its receiving end at the lowest- 'crease of the annular areas supplied there Willhe a correspdnding variation in the quantity of liquid supplied by; the nozzle;'

and thus the volume of liquid outflow from the ta-nk will decrease proportioi'iately to the diminution of the areas successively su p:- plied with liquid through thenozzle -In my inventiom-hroadly considered, the tank 'or reservoir of decreasing capacity which thus controls the volume of,liquid outflow may be eitherthe tank which directly sup;

an intermediate tank or receiver.

` t'ionally to variations in the area supplied.-

zie upon the surface of a filter hed. 'To ohtairi uniform treatment. of the sewage it 1.

.radius of the spread and the' areasupplied plies the nozzle, or a tank whiehfsupplies.

In the drawings, Figure l. is a vertical .sectional view ofone form oi the apparatus; und Fig. 2 'is other forni. f

o is the main feed pipe through which the or other distributing device.

c is the tank or reservoir7 from which the sewage 'flows into the pipe b and this tanl may he supplied from a reservoir f by a siphon y.

In the form shownin Fig. l it is the tank ff which is of decreasing capacity and acts as the ineans Jfor decreasing the volume of liquid outflow proportionately to the dimivnation of the areas successively supplied through the nozzle. As shown, the .Walls-en :thm-'e the outlet to the feed-pipe l) are in- .dined so that the tank has portion of decreasing horizontal dimension from its top to its bottoni. Theintake end of the siphon g is in the supply tank or reservoir f and the discharge end extends to the lower part. -ot the tank e. The tank e ,is iilled hy the phon g, and as the liquid flows from said tank c through the pipe l) to the-nozzle t there will he a decrease in volume of liquid outflow proportional to the diminution of the areassucoessively supplied 'with the liquid through the nozzle. Then the tank e is filling the action will he reversed. This action takes place only While the level of the e which is' ofpvarying hori'ionta'ly dimension. In the forni 'of the apparatus shown in. Fig. 2 the tank or reservoir of varying ca pacity or horizontal. dimension is the tank charged by the Siphon; g into the intermediN b is supplied. The walls of this tank or reslor smallest 'part 4of the tank f. Vlhile the discharge of liquid atthe nozzle ci is connozzle. I do not claim as part o f my invention as covered by this patent this particular a similaryiew sho-wing anliquid is falling in that portion of the tank 'atctaiik or reservoir /t'ironi which the pipe- 4-jftrolled hy the head of liquid in the'vessel It .atonted Apr. 1.1., 1.911..

sewage or liquid is supplied to thenozzle d', c.

`from which the sewage or liqiijd is dis- 'ervoi-r j are inclined as shown at f2 toforrnl i itlie portion of decreasing horizontal dirncn the siphon y, and as that flow is controlled' mension the voluine of liquid outflow vfro 'l 'I i 'tionately to the diminution ofnreas succesr 'sivel' supplied with liquid through'the noz- 25 zle", gul" Y' 2; In combination, va liquid container, a noz'zle connected therewith, a reservoir and .a-si'phon; for supplying the 1li-quid container frein' the reservoir, said container liaving a 3o forni of -tlie apparatu shown in 2, as

that forms the subjeotmutte'r. of'rny applii y cation Serial N 0.523,68() 'filed )ctobe'r 20th;

-I--have 'shown vthe siphons provided with f ail-pipes foi' automatically Controlling their! oloerajiioni V 2' is a pipe leadinghfrom near bthe intake' end-of the Siphon lip above the liquicllevel lO-ancl thenldoiwn through the discharge-leg and: terminatingr al; a' distance above its end.

von'the Siphon up abovethe normal liquid .`,l eve1 r 'and' tl'llen-down into the discharge lo chamber oiwhwhere it't'ermin'ates in a jlifgfl'iid `seal j auth@ levelof tlie'outlet` tothe Bb.; 1 t ola'ng-s as follows: l

n In combination, a liquid' container, a

20"" dijscllargedeYicef forfemptying the same, 'a

3'.- n apparatus vfor controlling the flow of 35 liquids,l thefc'om'bnation o ing horizontal dimension from-its topjto its ottom, and a Anozzle,supplied from the i smallest partei saidchamber.'v 40 i In tesimon'y'of which invention, I- have 4hereunto set my han -ALBERT PRIESTMAN.

nzz'lehthrouh which liquidxis' discharged Witnessesr' i end rneans orf decreasing the volume of4 ERNEST HOWARD HUNTER, l.iquicln outflovif` Vfrom the ,oonisainer, propop r KELLY; i 

